After I run Ccleaner to remove the temporary files, I have observed that the internet explorer download window vanishes without supplying me the option to view the download window options like run, open, save etc. This happens every time I run the cleaner. I am using Windows 7 home premium 64bits. But upon restarting the computer( the problem persists even after I logout), the download window behavior in IE is normal.Thought I'd bring this to your notice.